The visit of Commodore Biddle to the bay of Yedo, has added nothing to our knowledge of its shores. His polite dismissal, and the refusal of the government to entertain any commercial relations with the Americans, only add force to the injunction to captain Cooper the year before, not to return, and shows more strongly that while the Japanese rulers are determined to maintain their secluded policy, they wish to give no cause for retaliatory measures on the part of their unwelcome visitors, and mean to keep themselves as well informed as they can upon foreign politics. The subject of foreign intercourse between the two great nations of Eastern Asia and Europeans since it commenced three centuries since, is an instructive one; and the general impression left upon the mind of the candid reader, is that foreign nations have themselves chiefly to thank for their present seclusion from those shores, and the restrictions in their commerce. Rear-Admiral Cecille has also paid a visit to some part of Japan, quite recently, but met with no success in his endeavors to enter into negotiation. The great object in view in making these attempts to improve the intercourse with Japan, is to find new markets for western manufactures. It is quite doubtful, however, whether the Japanese have many articles suitable for foreign markets. Their lackered-ware is exceedingly beautiful, but it would not be so prized when it became more common. Copper and tea would form the basis of exports, and perhaps some silk fabrics, but China furnishes now all that is wanted of them both, and can do so to any extent. Until a taste for such foreign manufactures, as woolens, cutlery, glass-ware, calicoes, &c., is created among them, and they are willing to adapt their own products to the tastes of their customers, it does not seem likely that a trade at all proportioned to the estimated population and riches of the country, would soon be established. The Japanese are afraid of the probable results of a more extended intercourse, and deem it to be the safest course to run no risks; and if they read the pages of their early intercourse with the Portuguese, Spanish and Dutch, they must feel they would run many serious risks by granting a trade. If the siogoun and his advisers could be rightly informed, however, there are grounds for believing the present policy would be considerably relaxed.